Electrical Engineering Glossary Definition for LFSR
Glossary Term: LFSR
Definition
Linear Feedback Shift Register: A shift register in which some of its outputs are connected to the input through some logic gates (typically, an exclusive-or (XOR). A wide variety of bit patterns can be generated inexpensively, including pseudo-random sequences. Can be used as a noise generator.
Some application notes that include an LFSR:
DC-to-DC Converter Combats EMI: Figure 2 shows how a random noise generator randomly shifts the frequency to reduce EMI.